remove code disabled from writePixels change

These tests were asserting that particular, non-documented, optimizations were taking place
in the deferreddevice. Theese particualr short-cuts are no longer possible given the change
to canvas' writepixels to always require a raw-pointer.

R=junov@google.com
TBR=junov@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/190853002

git-svn-id: http://skia.googlecode.com/svn/trunk@13703 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed